The document outlines the timeline of major developments in communication technologies from the 6th century BCE to the modern day, including the development of the Phoenician alphabet, pigeon post, Morse code, the electric telegraph, telephone, radio, television, cellular networks, the internet, and social media platforms. Key developments include Alexander Graham Bell and Thomas Watson exhibiting the first telephone in 1876, the first radio broadcast in 1920, John Logie Baird transmitting the first television signal in 1925, and the creation of personal computers, the internet, Myspace, Youtube, and Twitter in later decades, which revolutionized how people interact and communicate globally.

1. Timeline of
communication
By: Austin, Rachel, Raena, Smriti, Farrah,
Bernice, Ben and Isaac

2. 6th century BCE: Mail
522-489 BC: Phoenician alphabet
● A language in the Persian civil service called the
Phoenician alphabet was developed.
● It is known as the most significant development of
history of writing.
12th century: Pigeon Post
● This form of communication uses homing pigeons to
carry messages

3. 1520: Firing cannons
● Ships on Ferdinand Magellan’s voyage signal to each other
by fire cannons
1672: Acoustic (mechanical) telephones
● Acoustic telephones are also known as ‘string’ telephones
as it works on the ‘two tin-cans on a string’ principal

4. 1835: Samuel Morse makes the Morse code
● This is a method transmitting text information through a
series of on-off tones, lights or clicks
● It was a popular form of communication
amongst amateur radio operators
1843: Samuel Morse makes the first long distance
electric telegraph line

5. 1876: Alexander Graham Bell + Thomas Watson exhibit
an electric telephone (Boston)
● This is the starting point of electronic communications
● This allowed the general public to contact and
communicate with their friends/family
1877: Thomas Edison patents the phonograph
● An early sound-reproducing machine that used
cylinders to record as well as produce sound

6. 1920: The first radio broadcast is made
● The Radio station KDKA began the first broadcast
● This gave people the opportunity to listen to discussions
about current affairs.
1925: John Logie Baird transmits the first television
signal
● People could finally watch television, beginning the era
of the telecommunication.

7. 1947: Douglas Ring and W. Rae Young of
Bell Labs propose a cell base research
method which eventually led to cellular
phones
The first handheld mobile cell phone was
demonstrated by Motorola in 1973
1963: First communication satellite is launched

8. 1976: First personal computer (PC) is created (Apple 1)

9. Late 1980s and Early 1990s: internet created

10. 2003: Myspace is launched
2005: Youtube is launched
2006: Messages are sent faster than ever before on a site
“Twitter”

11. How did this change the way we
interact?